Whirlpool Model #: WTW4800XQ making a loud grinding noise during spin cycle.
I have a similar model (WTW4850XQ1) that was making a very loud grinding/screeching noise during the agitation and sometimes the spin cycle. I unplugged and turned it on its front to get underneath and exposed the motor/transmission unit. Took the cover off the belt drive assembly and my drive gear was loose. Simple tightening down of the nut was an easy fix for me. But some times those plastic gears between the drive pulley assembly and transmission crack or the teeth wear down (think it's called the CAM). That is a fairly cheap and easy fix as well ($35). Repair Clinic website has free videos on how to diagnose and fix issues and parts as well. Worth a look.
SOURCE: Washer makes loud thumping after finished spin cycle
Remove washer cabinet (easy to remove)and check that "base pads" (there are 3 pads, located under the main tub)are not worn. In case they are worn (even one of them), you should replce them all. Good luck !!
SOURCE: loud noise at end of spin cycle
The most common cause of the symptom you are describing is a bad drive block which has probably ruined your basket drive as well. Let me give a quick explination. The weight of the basket you put your clothes in is supported entirely in the center of the washer underneath your agitator. It rests on an aluminum block called your drive block. So that the basket will move back and forth while the washer agitates, there are two tabs on the drive block that lock your basket drive underneath in place. Once the drive block wears out or round down these tabs, the basket will raise slightly and "skip" across the top when the spin cyle is stopped. To verify this, you can check one of two things. First (and easiest) is put a heavy, large load in the washer, get it wet then spin it out. Once the washer reaches the maximum spin speed, open the lid. The washer should snap to a halt when functioning properly. What I belive you'll find is that even with the lid open, the basket will continue to spin. The other method to verify this is take the top of the agitator off. Next remove the bolt in the middle of the agitator and lift the agitator off. In the middle, you should find a large flat metal colored nut.In the middle of that nut, you should see two tabs across from one another. There should be two straight pieces of metal coming up from the bottom which have nice, straight sharp corners. Again, if I am correct, you will find they have been rounded off and there may even be shavings of metal visable.
To replace a basket drive and drive block, you will need to purchase the parts and also a specialty tool from removal and instalation. These will probably run you around 125-175. If you are interested in giving it a go, reply back to me and I will get you some step-by-stpe instructions typed up.
SOURCE: Whirlpool Duet Washer Making Loud Grinding Noise
not nesseccarrily your pump, possible you have a rear bearing going bad, which will sound as if a helicopter is coming through your laundry room. ( noisy pump can be the issue , honestly a better and cheapre problem to have) in order to determine if its apump problem you can remove the lower access panel and unplug the pump then start the spinn cycle, if it still loud the pumpms not hte issue.
SOURCE: My whirlpool duet washer is making a funny noise
try removing the top cover to the unit, 3 screws across the back. after ermoving check to see exactly wehre noise is coming from. some times a solid "smack " witha screwdriver will quiet teh dispensor motor if needed
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